.menus {
  position: fixed;
  bottom: 5rem;
  width: 100%;
  display: flex;
  justify-content: center;
}

.menus > div {
  background-color: rgba(0, 0, 0, 0.5);
  color: #ffffff;
}

/* 菜单项容器和相关样式 */
.menu {
  display: flex;
}

.menu > div {
  width: 6rem;
  padding: 1rem 0px;
  text-align: center;
}

.menu > div:hover {
  cursor: pointer;
  background-color: #000000;
}

/* 线条的部分 */
.line {
  width: 6rem;
  height: 3px;
  background-color: #ffffff;
  transition: transform 0.5s;
}
/* 线条的位置 */
.move01 {
  transform: translateX(0%);
}
.move02 {
  transform: translateX(100%);
}
.move03 {
  transform: translateX(200%);
}
.move04 {
  transform: translateX(300%);
}

/* 背景变化的部分 */
.bg-div {
  width: 100vw;
  height: 100vh;
  transition: background-image 1s;
}

.bg01 {
  background-image: url('../../../images/xunlei-bg.jpg');
}
.bg02 {
  background-image: url('../../../images/img1.jpg');
}
.bg03 {
  background-image: url('../../../images/batman01.jpg');
}
.bg04 {
  background-image: url('../../../images/img12.jpg');
}
